My textbox class will increment and decrement a date when the user presses the + or - keys. Works fine, but recently I noticed that if the textbox is used in a column of a grid, the increment is by two and not by one. So when it's empty, the first + or - should set it to the current date, then the next + or - will increment or decrement the date by one. Instead, if the field is empty, pressing + will result in tomorrow's date being entered. Pressing it again will result in a date two days from the currently displayed date. Similar behavior is witnessed using the - key, except the date is decremented. I have used SET COVERAGE to determine that the code is not somehow executing twice and that the code I think is executing is actually executing. The same control works fine when not in a grid. Anyone have any thoughts as to what might cause this?

Thanks,

Russell Campbell